Montana Agate is a gemstone found in Montana, USA. Agate is a densely packed fine quartz formed by the depositing of multiple layers over many years in small cavities in volcanic rock. Beloved as a talisman or amulet since the ancient times of Mesopotamian and Egyptian civilizations, agates are found all over the world, including Japan, and its colors and patterns vary widely depending the area. Among them, Montana agate often contains red iron oxide and black manganese oxide, characterized by the unique appearance of rhythmical patterns reminiscent of smeared dots of ink dabbed with a brush, like an abstract painting. The agate we have carefully selected for this piece features a rhythmic black pattern as if painted on the milky white canvas of an abstract painting, the contrast that changes with each layer giving it a sense of depth. The gold ring has a matte texture with traces of handiwork for a sense of warmth, in a simple design like the frame of a painting, in harmony with the rounded glossy form of the Montana agate. A bold ring with an eye-catching presence.
【 Ryui Monthly piece 】
Gemstones shaped by time and chance No two are the same Our designers carefully select a "fragment" of nature every month Sharing with you the design and production process until it becomes jewelry —a special collection.
material : K18 , Montana agate
stone size : 6.54ct
top size : approx. H 17mm × W 13.2mm
ring size:10
I-480
*This ring can be resized within ±3 sizes from the stock size (delivery time: about 4 weeks). Please select "Resize from stock size" Please fill in your desired size in the option form and proceed to purchase.
We use Japanese sizes. For international equivalents, please refer to the correspondence table below.
Perimeter (mm)
Inner diameter (mm)
Japan (JCS)
EU (JIS / ISO)
US
UK
40.8
13
1
41
1
C
41.9
13.4
2
42
2
D
42.9
13.7
3
43
2.5
E
44
14
4
44
3
F
45
14.4
5
45
3.5
G
46.1
14.7
6
46
3.5 – 4
G – H
47.1
15
7
47
4 – 4.5
H – I
48.2
15.4
8
48
4.5 – 5
I – J
49.2
15.7
9
49
5
J
50.3
16
10
50
5.5
K
51.3
16.4
11
51
6
L
52.4
16.7
12
52
6.5
L – M
53.4
17
13
53
6.5 – 7
M – N
54.5
17.4
14
54
7 – 7.5
N – O
55.5
17.7
15
55
7.5 – 8
O – P
56.5
18
16
56
8
P
57.6
18.4
17
57
8.5
Q
58.6
18.7
18
58
9
R
59.7
19
19
59
9.5
S
60.7
19.4
20
60
10
T
61.8
19.7
21
61
10 –
T – U
62.8
20
22
62
10.5
UK
63.9
20.4
23
63
11
V
64.9
20.7
24
64
11.5
W
66
21
25
65
12
X
Resizing at the time of purchase
For rings over ¥33,000 (tax included)
We offer complimentary resizing within ±3 sizes from the size in stock. If you wish to have your ring resized, please proceed to the purchase screen of the item and enter the desired size in the remarks form in the shopping cart. Production period: about 4 weeks
For rings under ¥33,000 (tax included)
We do not accept resizing from stock items. Please contact us using the inquiry form and we will make a custom order in the desired size. Production period: about 5 weeks
Selecting your ring size
We recommend choosing a size that you can comfortably wear without feeling pressure or tightness when you make a fist, and without discomfort between adjacent fingers.
For wide rings of 6.0 mm or more
Compared to the number measured with a typical ring gauge, a wide width ring may feel a little tight to wear due to its large surface area. When considering a wide ring, we recommend that you choose a slightly looser size than you usually wear, 1 to 1.5 sizes up.
Please note that some rings cannot be resized due to their design.
Please check the details on each product page.
Contact
Please feel free to contact us using the form below.